John t



10] 2 4 8 PATENTE MAR 29 1870 initiiert 50i-IN T. FSHER,

i HTTSBUBG, PENSYLVANA, ASSlGNR T0 JAMES B.

GLOW, OF SAME YLAOU.

Letters Patent No. 10l,248, dated Ma-rch 29, 2.870.

IMPROVEMENT EN PREVENTNG TEE ENGRUSTTGN QE T AJLBLERS.

The Schedule :eerrcd to in these Letters Patent and making part of the same,

To all whom it may concer-:r:

Be it known that I, J oHN T. Fisnnn, of the city of.

tion, which, by a perspective, illustra-tes my iinprovcment.

It is well known tlntt the belt-ing used in connection with or as a part of machinery, and also pulley or other rapidly-revolving wheels, generate aconsidersble amount of electricity.

'.ihc.' object of my invention is to enply the electricity thus generated by' belts, pulley, oifotic'parts oi" machinery, to preventing the incrustation of steamboilers, and

The nature of it consists in connecting the steamboiler by a copper wire or other conductor of clectric- `ity with a revolving wheel, pulley, belt, or soine other part ofthe machinery', in such way that the electricity so generated by the machinery, or anypart oi' it, shall be conducted to the boiler, and so charge the boiler that the incrustation of it by the deposition of soiid matter from the water shall bc prevented.

To enable others skilled in the art to make and use my invention, will proceed to describe its construction and manner' of use.

aisasteam-boiler of the ordinary or any known construction.

b is a pulley, over which 'passes the belt c.

The boiler a and belt c I connect together-by a copper rod, d, or by any other article or material which is a conductor of electricity.

One end of the wire or rod d s placed near enough to the belt c, say, about one inch from it, to receive the electricity as it is generated by the moving belt, or if so preferred, a receiver, e, to which the rod or wire d is attached, may he interposed between the rod al and belt c.

'.ihe receiver e may he runde with or without points, as may be preferred. The eiect in either case is the rivets or any other suitable part oi' the. boiler', as to charge the boiler with the electricity so gcneratcd,bnt other modos of attaching the rod tl to the boiler may be adopted.

The chief point of construction is that the conducting-wire l should be so fixed that it will receive a full chui-ge of electricity from the revolving belt, or from any other part of the machinery which generates electricity, and that its isolation be preserved until it reaches the boiler, to which it is attached.

Thus the boiler is kept continually charged with elec trinity which is generated by the machinery, so that its negative condition is changed to a positive condition, whereby is,preventcd the deposition or precipitation of cnicinons matter in the boiler from the water.

VThe devices' described vcost but a trifle, and can be easily attached to either a new or old boiler. rlhere is .no expense involved in its use, whereby the cost of batteries, chemicals, magnets, and compositions oi" matter' is entirely saved. f

The better to secure the result described, the upper or exposed portion of the boiler may be coated with calcined gypsum or other like electrical non-'conduc-` tor, and this in turn be covered with a wash of pinnibngo or other solution containing n metallic oxide,

care being taken, however, that this outer wash or coating does not come in contact with the wireleading from the belt to the boiler.

In most cases the mortar with which the outside oi' the boiler is commonly covered will, when thoroughly dried, suiiice for the inner or non-conducting coating. The electricitylironi the belt will then positively elec` trify the inside of the boiler, with the beneficialA re suits abovestoted.

1Wheti claim as my inventioinand desire to secure by Letters Fatent, is-

Connecting a steam-boiier by a copper wire or rod, or by any other article or material which is n. conductor of electricity, with e, belt or other part of the machinery, which, when ininotion, is a generator oi' electricity', substnntieliyfas and for the purposes above set forth.

i in testimony whereof Ltbe said Joris T. FISHER, have hereunto set my hand.

i'OHN T. FISHER. Witnesses A. S. Nicnonsos, Taos. B. Kenn. 

